.wraper{
				width: 1280px;
				margin: 0 auto;
				border: solid darkgrey 1px;
				margin-bottom: 5px;
				margin-top: 10px;
			}
			header{
				width: 100%;
				height: 120px;
				background-color: red;	
			}
			nav{
				height: 50px;
				background-color: #F5F5F7;
				margin-bottom: 10px;
			}
			.lbt{
				width: 867px;
				height: 567px;
				float: left;
				background-color: aquamarine;
			}
			.news{
				width: 380px;
				height: 567px;
				float: right;
				background-color: aqua;
			}
			.kong{
				height: 30px;
				background-color: red;
			}
			.flash{
				height: 280px;
				background-color: gold;
			}
			
			.ztch1{
				width: 620px;
				height: 250px;
				background-color: salmon;
				float: left;
			}
			.ztch2{
				width: 620px;
				height: 250px;
				background-color: salmon;
				float: right;
			}
			footer{
				height: 280px;
				background-color: darkorchid
			}
